The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2017
Filed:
Feb. 18, 2014
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Jürgen Legner, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission device () with secondarily coupled power splitting in which part of an applied torque can be conducted, in a first power branch () at least by way of a hydrostatic system (), and the other part of the torque can be conducted in a second power branch () via mechanical system (), located between a transmission input () and a transmission output (). The hydrostatic system () of the first power branch () includes at least one pump () and at least one motor () that is functionally connected to the pump by way of a hydraulic circuit, and both of the pump and motor are adjustable. The two power paths () can be summed by a summing gear system (). The pump () is made smaller than the motor ().